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| IUPAC name : | 2-oxobutanoic acid |
| InChI : | InChI=1/C4H6O3/c1-2-3(5)4(6)7/h2H2,1H3,(H,6,7) |
| InChIKey : | TYEYBOSBBBHJIV-UHFFFAOYAT |
| SMILES : | CCC(=O)C(=O)O |
| cas number : | 600-18-0 |
| (EINECS) number : | 209-986-9 |
| beilstein number : | 1700514 |
| fema number : | 3723 |
| jecfa number : | 589 |
| fl. number : | 08.066 |
| molar refractivity : | 22.17 ± 0.3 cm3 |
| parachor : | 218.1 ± 4.0 cm3 |
| index of refraction : | 1.427 ± 0.02 |
| surface tension : | 40.8 ± 3.0 dyne/cm |
| density : | 1.182 ± 0.06 g/cm3 |
| polarizability : | 8.79 ± 0.5 10-24cm3 |
| XlogP : | -0.20 |
| XlogP3-AA : | 0.10 |
| molecular weight : | 102.0886400 (IUPAC) |
| formula : | C4 H6 O3 |
| NMR Predictor : | Predict |
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| export tariff code : | 2915.60.0000 |
| fda reg : | unspecified |
Suppliers :
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| Nanjing : | 2-ketobutyric acid
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| Penta : | 2-oxobutyric acid
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| Pfaltz & Bauer : | 2-Ketobutyric acid
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| Sigma-Aldrich-SAFC : | 2-Oxobutyric acid
97+ %, Kosher Odor: caramel; creamy |
| TCI AMERICA : | 2-oxobutyric acid
>98.0%(GC)(T) |
organoleptics :
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| odor type : | caramellic |
| odor strength : | high , recommend smelling in a 1.00 % solution or less |
odor description : at 1.00 % in propylene glycol. | sweet brown caramel creamy lactonic |
properties :
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| appearence : | white clear liquid |
| assay : | 98.00 to 100.00 %
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| Food Chemicals Codex Listed : | No |
| melting point : | 30.00 to 34.00 °C. @ 760.00 mm Hg
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| boiling point : | 80.00 to 82.00 °C. @ 16.00 mm Hg
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| flash point : | 179.00 °F. TCC ( 81.67 °C. )
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| logP (o/w) : | -0.75 |
safety :
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| most important hazard(s) : | Xi - Irritant |
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R 36/37/38 - Irritating to eyes, respiratory system, and skin. S 02 - Keep out of the reach of children. S 24/25 - Avoid contact with skin and eyes. S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S 36/37/39 - Wear suitable clothing, gloves and eye/face protection.
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| Oral Toxicity(LD50) : |
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Not determined
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| Dermal Toxicity(LD50) : |
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Not determined
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| Inhalation Toxicity(LC50) : |
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Not determined
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safety in use :
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| Maximised Survey-derived Daily Intakes (MSDI-EU) : | 0.024 (μg/capita/day) |
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| recommendation for 2-oxobutyric acid usage levels up to : |
| | not for fragrance use.
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| recommendation for 2-oxobutyric acid usage levels up to : |
| | 25.0000 ppm in the flavor.
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safety references :
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| European Food Safety Athority(efsa) : | Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies... |
| EPI System : | view |
| Cancer Citations : | Search |
| Toxicology Citations : | Search |
| Canada Domestic Sub. List : | Yes |
| EPA Chem. Sub. Inventory : | Yes |
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| WGK Germany : | 3 |
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| | 2-oxobutanoic acid
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| (EINECS) number : | 209-986-9 |
| chemidplus : | 000600180 |
| EPA Substance Registry Services : | 600-18-0 |
| dtp/nci : | 60533 |
references :
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| | 2-oxobutanoic acid
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| fl. number : | 08.066 |
| jecfa number : | 589 |
| NIST Chemistry WebBook : | 599976876 |
| pubchem : | 197406 |
other :
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| VCF-Online: | VCF Volatile Compounds in Food |
| FDA Everything Added to Food in the United States (EAFUS) | View |